Child booster seat assembly

ABSTRACT

A child booster seat assembly includes a base seat and an upper seat. A first seating area is formed on the base seat. The upper seat is detachably installed on the base seat. The upper seat can be installed on the base seat installed on an adult chair at a higher position or detached from the base seat and installed on the adult chair at a lower position, which allows a caregiver to adjust an elevated height of the upper seat easily. Furthermore, when the upper seat is detached from the base seat, the upper seat and the base seat can be used independently and respectively installed on two adult chairs for accommodating two children at once.

CROSS REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of U.S. Provisional Application No.62/846,142, filed on May 10, 2019, and U.S. Provisional Application No.62/889,712, filed on Aug. 21, 2019, and the entire contents of thisapplication are hereby incorporated by reference.

BACKGROUND OF THE INVENTION 1. Field of the Invention

The present invention relates to a child product, and more particularly,to a child booster seat assembly which is switchable between differentusing modes for accommodating children of different ages and capable ofproviding two seating areas for two children at once.

2. Description of the Prior Art

With development of the economy and advancement of the technology, thereare more and more consumer goods for bringing convenience in people'slife. A child booster seat is one of the consumer goods. The childbooster seat is installed on an adult chair to provide an elevated safeseating area for a child. However, the conventional child booster seatis not suitable for children of different ages because a growing child'sheight and weight increases rapidly, so that a caregiver has to replacethe child booster seat when the child booster seat does not fit with achild properly, which causes a waste of money and resources.Furthermore, the conventional child booster seat cannot provide twoseating areas for two children at once.

SUMMARY OF THE INVENTION

Therefore, it is an objective of the present invention to provide achild booster seat assembly which is switchable between different usingmodes for accommodating children of different ages and capable ofproviding two seating areas for two children at once, for solving theaforementioned problem.

In order to achieve the aforementioned objective, the present inventiondiscloses a child booster seat assembly. The child booster seat assemblyincludes a base seat and an upper seat. A first seating area is formedon the base seat. The upper seat is detachably installed on the baseseat.

According to an embodiment of the present invention, the child boosterseat assembly further includes a latch mechanism for latching the upperseat on the base seat.

According to an embodiment of the present invention, the latch mechanismincludes an actuator, at least one first engaging structure and at leastone second engaging structure. The actuator is disposed on the upperseat. The at least one first engaging structure is disposed on the upperseat and connected to the actuator. The at least one second engagingstructure is disposed on the base seat and located at a positioncorresponding to the at least one first engaging structure for engagingwith or disengaging from the at least one first engaging structure.

According to an embodiment of the present invention, at least one firstguiding structure is formed on the upper seat. At least one secondguiding structure is formed on the base seat and located at a positioncorresponding to the at least one first guiding structure, and the upperseat is guided to be aligned with the base seat by cooperation of the atleast one first guiding structure and the at least one second guidingstructure.

According to an embodiment of the present invention, the at least onefirst engaging structure is movably disposed on the at least one firstguiding structure. The at least one second engaging structure is formedinside the at least one second guiding structure, and the at least onefirst engaging structure and the at least one second engaging structureare engaged with each other to restrain separation of the upper seatfrom the base seat.

According to an embodiment of the present invention, the actuator is abutton. The at least one first engaging structure is a latch. The atleast one second engaging structure is an indentation. The at least onefirst guiding structure is a key. The at least one second guidingstructure is a keyway.

According to an embodiment of the present invention, the upper seatincludes a seat bottom and a seat back pivotally disposed on the seatbottom.

According to an embodiment of the present invention, at least onepivoting boss protrudes from the seat back. At least one through slot isformed on the seat bottom, and the at least one pivoting boss rotatablypasses through the at least one through slot.

According to an embodiment of the present invention, the at least onepivoting boss includes a flange. The seat bottom includes a bottom body.The at least one through slot is formed on the bottom body and extendsalong a vertical direction. A diameter of an upper end of the at leastone through slot is greater than a diameter of a lower end of the atleast one through slot. The diameter of the upper end of the at leastone through slot is greater than a diameter of the flange for allowingthe flange to pass through the upper end of the at least one throughslot. The diameter of the lower end of the at least one through slot isless than the diameter of the flange for restraining the flange frompassing through the lower end of the at least one through slot. The atleast one pivoting boss rotatably engages with the lower end of the atleast one through slot about a pivoting axis of the seat back relativeto the seat bottom.

According to an embodiment of the present invention, the seat bottomfurther includes at least one side panel detachably installed on thebottom body. A retention boss protrudes from the at least one side panelfor rotatably and at least partially inserting into the at least onepivoting boss, and the retention boss restrains the at least onepivoting boss from moving relative to the at least one through slot whenthe retention boss is rotatably and at least partially inserted into theat least one pivoting boss.

According to an embodiment of the present invention, the seat backincludes an upper portion and a lower portion. The lower portion ispivotally disposed on the seat bottom, and the upper portion isdetachably installed on the lower portion.

According to an embodiment of the present invention, the child boosterseat assembly further includes at least one webbing strap and at leastone chamber structure. The at least one webbing strap is connected tothe upper seat for attaching the upper seat onto an adult chair. The atleast one chamber structure is located adjacent to a bottom portion ofthe upper seat. The at least one chamber structure includes an uncoveredopening, and the at least one webbing strap is accommodated inside theat least one chamber structure through the uncovered opening.

According to an embodiment of the present invention, the upper seatincludes a seat bottom. The seat bottom includes a bottom body and atleast one side panel detachably installed on the bottom body, and the atleast one chamber structure is integrated with the at least one sidepanel.

According to an embodiment of the present invention, the uncoveredopening is oriented horizontally toward a center of the bottom portionof the upper seat.

According to an embodiment of the present invention, the upper seatfurther includes a harness system for securing a child on the upperseat.

According to an embodiment of the present invention, the child boosterseat assembly further includes a tray detachably disposed on the upperseat.

According to an embodiment of the present invention, the child boosterseat assembly further includes a seat cushion whereon a third seatingarea is formed. The seat cushion is detachably disposed on the upperseat, and the third seating area is less than the second seating area.

According to an embodiment of the present invention, the second seatingarea is less than the first seating area.

In summary, in the present invention, the upper seat is detachablyinstalled on the base seat, and the upper portion of the seat back isdetachably installed on the lower portion of the seat back pivotallydisposed on the seat bottom. Furthermore, the seat cushion and the trayare detachably disposed on the upper seat. Therefore, the child boosterseat assembly is switchable between different using modes with differentseating areas and different elevated heights for accommodating childrenof different ages. Furthermore, when the upper seat is detached from thebase seat, the upper seat and the base seat can be installed on twoadult chairs and used independently. Therefore, the child booster seatcan accommodate two children at once.

These and other objectives of the present invention will no doubt becomeobvious to those of ordinary skill in the art after reading thefollowing detailed description of the preferred embodiment that isillustrated in the various figures and drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 to FIG. 7 are diagrams of a child booster seat assembly indifferent using modes according to an embodiment of the presentinvention.

FIG. 8 is a diagram of a bottom portion of an upper seat according tothe embodiment of the present invention.

FIG. 9 is a partial diagram of the upper seat according to theembodiment of the present invention.

FIG. 10 is a diagram of a side panel according to the embodiment of thepresent invention.

DETAILED DESCRIPTION

In the following detailed description of the preferred embodiments,reference is made to the accompanying drawings which form a part hereof,and in which is shown by way of illustration specific embodiments inwhich the invention may be practiced. In this regard, directionalterminology, such as “top,” “bottom,” “front,” “back,” etc., is usedwith reference to the orientation of the FIGS. being described. Thecomponents of the present invention can be positioned in a number ofdifferent orientations. As such, the directional terminology is used forpurposes of illustration and is in no way limiting. Accordingly, thedrawings and descriptions will be regarded as illustrative in nature andnot as restrictive.

Please refer to FIG. 1 to FIG. 7. FIG. 1 to FIG. 7 are diagrams of achild booster seat assembly 1 in different using modes according to anembodiment of the present invention. In order to illustrate structureand operational principle of the child booster seat assembly 1 of thepresent invention, the using states shown in FIG. 1 to FIG. 7 are onlyexemplary. However, the present invention is not limited thereto. Asshown in FIG. 1 to FIG. 7, the child booster seat assembly 1 includes abase seat 11, an upper seat 12, a seat cushion 13 and a tray 14. Theupper seat 12 is detachably installed on the base seat 11. The seatcushion 13 and the tray 14 are detachably disposed on the upper seat 12.The upper seat 12 includes a seat bottom 121, a seat back 122 and aharness system 123. The seat back 122 is pivotally disposed on the seatbottom 121 and can be reclined relative to the seat bottom 121. The seatback 122 includes an upper portion 1221 and a lower portion 1222. Theupper portion 1221 can be detachably installed on the lower portion 1222for supporting a child's back and neck. The lower portion 1222 ispivotally disposed on the seat bottom 121. The harness system 123 isdetachably disposed on the upper portion 1221 of the seat back 122 forsecuring the child.

A first seating area A1 is formed on the base seat 11. A second seatingarea A2 is formed on the upper seat 12. A third seating area A3 isformed on the seat cushion 13. Preferably, in this embodiment, thesecond seating area A2 can be less than the first seating area A1, andthe third seating area A3 can be less than the second seating area A2.In other words, in this embodiment, the third seating area A3 can beconfigured to accommodate an infant who can be 0 to 1 year of age, thesecond seating area A2 can be configured to accommodate a toddler whocan be 1 to 2 year of age, and the first seating area A1 can beconfigured to accommodate a youth who can be over 2 year of age. Forexample, when the upper seat 12 is installed on the base seat 11 and theseat cushion 13 is installed on the upper seat 12, the child boosterseat assembly 1 can provide the third seating area A3 to accommodate theinfant. When the upper seat 12 is installed on the base seat 11 and theseat cushion 13 is detached from the upper seat 12, the child boosterseat assembly 1 can provide the second seating area A2 to accommodatethe toddler. When the upper seat 12 is detached from the base seat 11,the child booster seat assembly 1 can provide the first seating area A1to accommodate the youth. However, the present invention is not limitedto this embodiment. For example, in another embodiment, the firstseating area formed on the base seat can be less than or equal to thesecond seating area formed on the upper seat.

When the child booster seat assembly 1 is in the using modes as shown inFIG. 1 to FIG. 4, the upper seat 12 is installed on the base seat 11 andthe base seat 11 is fastened on an adult chair by at least one strap 111connected to the base seat 11, so that the upper seat 12 is located at ahigher position. When the child booster seat assembly 1 is in the usingmodes as shown in FIG. 5 to FIG. 6, the upper seat 12 is detached fromthe base seat 11 and installed on the adult chair directly by at leastone webbing strap 16 connected to the upper seat 12, so that the upperseat 12 is located at a lower position. When the child booster seatassembly 1 is in the using mode as shown in FIG. 7, the upper seat 12 isdetached from the base seat 11, and the base seat 11 is installed on theadult chair by the at least one strap 111. Furthermore, when the upperseat 12 is detached from the base seat 11 and installed on the adultchair as shown in FIG. 5 to FIG. 6, the base seat 11 can be installed onanother adult chair as shown in FIG. 7, so that the upper seat 12 andthe base seat 11 can be used independently to accommodate two childrenat once. Besides, as shown in FIG. 1 to FIG. 6, understandably, nomatter when the upper seat 12 is installed on the base seat 11 or theadult chair, the upper portion 1221 of the seat back 122 can beselectively installed on the lower portion 1222 of the seat back 122,the seat cushion 13 can be selectively installed on the upper seat 12,the tray 14 can be selectively installed on the upper seat 12 and theharness system 123 can be selectively installed on the upper portion1221 of the seat back 122. Such configuration provides flexibility inuse.

Please refer to FIG. 1 to FIG. 8. FIG. 8 is a diagram of a bottomportion of the upper seat 12 according to the embodiment of the presentinvention. As shown in FIG. 1 to FIG. 8, the child booster seat assembly1 further includes a latch mechanism 15 for latching the upper seat 12on the base seat 11. The latch mechanism 15 includes an actuator 151,two first engaging structures 152 and two second engaging structures153. The actuator 151 is disposed on the upper seat 12. The two firstengaging structures 152 are disposed on the upper seat and connected tothe actuator 151. The two second engaging structures 153 are disposed onthe base seat 11 and located at positions corresponding to the two firstengaging structures 152 for engaging with or disengaging from the twofirst engaging structures 152. The upper seat 12 is restrained frombeing separated from the base seat 11 when the two first engagingstructures 152 respectively engage with the two second engagingstructures 153. The upper seat 12 is allowed to be separated from thebase seat 11 when the two first engaging structures 152 respectivelydisengage from the two second engaging structures 153.

Specifically, the actuator 151 is movably disposed on the upper seat 12and connected to the two first engaging structures 152 by a linkingassembly 154. The linking assembly 154 includes a driving component 1541connected to the actuator 151 and two driven components 1542respectively connected to the two first engaging structures 152. Twodriving inclined slots 1541A are formed on the driving component 1541. Asliding column 1542A protrudes from each driven component 1542 andpasses through the corresponding driving inclined slot 1541A. Theactuator 151 can drive the two first engaging structures 152 bycooperation of the two driving inclined slots 1541A and the two slidingcolumns 1542A. Furthermore, two first guiding structures 155 are formedon the upper seat 12. Two second guiding structures 156 are formed onthe base seat 11 and located at positions corresponding to the two firstguiding structures 155. The upper seat 12 is guided to be aligned withthe base seat 11 by cooperation of the two first guiding structures 155and the two second guiding structures 156. Each first engaging structure152 is movably disposed on the corresponding first guiding structure155. Each second engaging structure 153 is formed inside thecorresponding second guiding structure 156. Each first engagingstructure 152 and the corresponding second engaging structure 153 areengaged with each other to restrain separation of the upper seat 12 fromthe base seat 11.

Preferably, in this embodiment, the actuator 151 can be a button, eachfirst engaging structure 152 can be a latch, each second engagingstructure can be an indentation, each first guiding structure 155 can bea key, and each second guiding structure 156 can be a keyway. However,the present invention is not limited to this embodiment.

Please refer to FIG. 5, FIG. 6 and FIG. 8. As shown in FIG. 5, FIG. 6and FIG. 8, the child booster seat assembly 1 further includes fourwebbing straps 16 and two chamber structures 17. The four webbing straps16 are connected to the upper seat 12. Two of the four webbing straps 16can wrap around a seat back of the adult chair to be connected to eachother, and the other two of the four webbing straps 16 can wrap around aseat pan of the adult chair to be connected to each other, so as tofasten the upper seat 12 on the adult chair. When the upper seat 12 isfastened on the adult chair, the two first guiding structures 155 can beused as two stands to support the upper seat 12 on the adult chair. Thetwo chamber structures 17 are located adjacent to the bottom portion ofthe upper seat 12. Each chamber structure 17 includes an uncoveredopening 171, and each webbing strap 16 can be accommodated inside thecorresponding chamber structure 17 through the uncovered opening 171.Specifically, the seat bottom 121 includes a bottom body 1211 and twoside panels 1212 detachably installed on the bottom body 1211. Eachchamber structure 17 can be integrated with the corresponding side panel1212, and the uncovered opening 171 is oriented horizontally toward acenter of the bottom portion of the upper seat 12, i.e., the twouncovered opening 171 face toward each other. Such configuration allowsa caregiver to store the four webbing strap 16 in the two chamberstructures 17 easily for preventing interference caused by the loosewebbing strap 16 when the upper seat 12 is installed on the base seat11.

Besides, please refer to FIG. 5 to FIG. 10. FIG. 9 is a partial diagramof the upper seat 12 according to the embodiment of the presentinvention. FIG. 10 is a diagram of the side panel 1212 according to theembodiment of the present invention. As shown in FIG. 5 to FIG. 10, apivoting boss 1222A protrudes from each lateral side of the lowerportion 1222 of the seat back 122. A through slot 1211A is formed oneach lateral side of the bottom body 1211 of the seat bottom 121. Eachpivoting boss 1222A rotatably passes through the corresponding throughslot 1211A and includes a flange 1222B. Each through slot 1211A extendsalong a vertical direction V. A diameter of an upper end 1211B of eachthrough slot 1211A is greater than a diameter of a lower end 1211C ofeach through slot 1211A. The diameter of the upper end 1211B of eachthrough slot 1211A is greater than a diameter of the flange 1222B of thecorresponding pivoting boss 1222A for allowing the corresponding flange1222B to pass through the upper end 1211B of the corresponding throughslot 1211A. The diameter of the lower end 1211C of each through slot1211A is less than the diameter of the corresponding flange 1222B forrestraining the corresponding flange 1222B from passing through thelower end 1211C of the corresponding through slot 1211A. Each pivotingboss 1222A rotatably engages with the lower end 1211C of thecorresponding through slot 1211A about a pivoting axis of the seat back122 relative to the seat bottom 121. A retention boss 1212A protrudesfrom each side panel 1212 for rotatably and at least partially insertinginto the corresponding pivoting boss 1222A, and the correspondingretention boss 1212A restrains the corresponding pivoting boss 1222Afrom moving relative to the corresponding through slot 1211A when thecorresponding retention boss 1212A is rotatably and at least partiallyinserted into the corresponding pivoting boss 1222A. Such configurationsecures a pivoting connection of the seat back 122 and the seat bottom121.

In contrast to the prior art, in the present invention, the upper seatis detachably installed on the base seat, and the upper portion of theseat back is detachably installed on the lower portion of the seat backpivotally disposed on the seat bottom. Furthermore, the seat cushion andthe tray are detachably disposed on the upper seat. Therefore, the childbooster seat assembly is switchable between different using modes withdifferent seating areas and different elevated heights for accommodatingchildren of different ages. Furthermore, when the upper seat is detachedfrom the base seat, the upper seat and the base seat can be installed ontwo adult chairs and used independently. Therefore, the child boosterseat can accommodate two children at once.

Those skilled in the art will readily observe that numerousmodifications and alterations of the device and method may be made whileretaining the teachings of the invention. Accordingly, the abovedisclosure should be construed as limited only by the metes and boundsof the appended claims.

What is claimed is:
 1. A child booster seat assembly comprising: a baseseat whereon a first seating area is formed; and an upper seat whereon asecond seating area is formed, the upper seat being detachably installedon the base seat.
 2. The child booster seat assembly of claim 1, furthercomprising a latch mechanism for latching the upper seat on the baseseat.
 3. The child booster seat assembly of claim 2, wherein the latchmechanism comprises: an actuator disposed on the upper seat; at leastone first engaging structure disposed on the upper seat and connected tothe actuator; and at least one second engaging structure disposed on thebase seat and located at a position corresponding to the at least onefirst engaging structure for engaging with or disengaging from the atleast one first engaging structure.
 4. The child booster seat assemblyof claim 3, wherein at least one first guiding structure is formed onthe upper seat, at least one second guiding structure is formed on thebase seat and located at a position corresponding to the at least onefirst guiding structure, and the upper seat is guided to be aligned withthe base seat by cooperation of the at least one first guiding structureand the at least one second guiding structure.
 5. The child booster seatassembly of claim 4, wherein the at least one first engaging structureis movably disposed on the at least one first guiding structure, the atleast one second engaging structure is formed inside the at least onesecond guiding structure, and the at least one first engaging structureand the at least one second engaging structure are engaged with eachother to restrain separation of the upper seat from the base seat. 6.The child booster seat assembly of claim 5, wherein the actuator is abutton, the at least one first engaging structure is a latch, the atleast one second engaging structure is an indentation, the at least onefirst guiding structure is a key, the at least one second guidingstructure is a keyway.
 7. The child booster seat assembly of claim 1,wherein the upper seat comprises a seat bottom and a seat back pivotallydisposed on the seat bottom.
 8. The child booster seat assembly of claim7, wherein at least one pivoting boss protrudes from the seat back, atleast one through slot is formed on the seat bottom, and the at leastone pivoting boss rotatably passes through the at least one throughslot.
 9. The child booster seat assembly of claim 8, wherein the atleast one pivoting boss comprises a flange, the seat bottom comprises abottom body, the at least one through slot is formed on the bottom bodyand extends along a vertical direction, a diameter of an upper end ofthe at least one through slot is greater than a diameter of a lower endof the at least one through slot, the diameter of the upper end of theat least one through slot is greater than a diameter of the flange forallowing the flange to pass through the upper end of the at least onethrough slot, the diameter of the lower end of the at least one throughslot is less than the diameter of the flange for restraining the flangefrom passing through the lower end of the at least one through slot, theat least one pivoting boss rotatably engages with the lower end of theat least one through slot about a pivoting axis of the seat backrelative to the seat bottom.
 10. The child booster seat assembly ofclaim 9, wherein the seat bottom further comprises at least one sidepanel detachably installed on the bottom body, a retention bossprotrudes from the at least one side panel for rotatably and at leastpartially inserting into the at least one pivoting boss, and theretention boss restrains the at least one pivoting boss from movingrelative to the at least one through slot when the retention boss isrotatably and at least partially inserted into the at least one pivotingboss.
 11. The child booster seat assembly of claim 7, wherein the seatback comprises an upper portion and a lower portion, the lower portionis pivotally disposed on the seat bottom, and the upper portion isdetachably installed on the lower portion.
 12. The child booster seatassembly of claim 1, further comprising: at least one webbing strapconnected to the upper seat for attaching the upper seat onto an adultchair; and at least one chamber structure located adjacent to a bottomportion of the upper seat, the at least one chamber structure comprisingan uncovered opening, and the at least one webbing strap beingaccommodated inside the at least one chamber structure through theuncovered opening.
 13. The child booster seat assembly of claim 12,wherein the upper seat comprises a seat bottom, the seat bottomcomprises a bottom body and at least one side panel detachably installedon the bottom body, and the at least one chamber structure is integratedwith the at least one side panel.
 14. The child booster seat assembly ofclaim 12, wherein the uncovered opening is oriented horizontally towarda center of the bottom portion of the upper seat.
 15. The child boosterseat assembly of claim 1, wherein the upper seat further comprises aharness system for securing a child on the upper seat.
 16. The childbooster seat assembly of claim 1, further comprising a tray detachablydisposed on the upper seat.
 17. The child booster seat assembly of claim1, further comprising a seat cushion whereon a third seating area isformed, the seat cushion being detachably disposed on the upper seat,and the third seating area being less than the second seating area. 18.The child booster seat assembly of claim 1, wherein the second seatingarea is less than the first seating area.